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Disclosures about Fair Value of Assets and Liabilities - Other Assets Measured at Fair Value on Nonrecurring Basis (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
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Significant Unobservable Inputs (Level 3) | Mortgage servicing rights |  |
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items] |  |
Impaired loans | $ 12,472 | $ 14,327
Significant Unobservable Inputs (Level 3) | Collateral dependent loans |  |
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items] |  |
Impaired loans | 13,123 | 6,806
Fair Value, Nonrecurring | Mortgage servicing rights |  |
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items] |  |
Impaired loans | 12,472 | 14,327
Fair Value, Nonrecurring | Collateral dependent loans |  |
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items] |  |
Impaired loans | 13,123 | 6,806
Fair Value, Nonrecurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Mortgage servicing rights |  |
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items] |  |
Impaired loans | 0 | 0
Fair Value, Nonrecurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Collateral dependent loans |  |
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items] |  |
Impaired loans | 0 | 0
Fair Value, Nonrecurring | Significant Other Observable Inputs (Level 2) | Mortgage servicing rights |  |
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items] |  |
Impaired loans | 0 | 0
Fair Value, Nonrecurring | Significant Other Observable Inputs (Level 2) | Collateral dependent loans |  |
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items] |  |
Impaired loans | 0 | 0
Fair Value, Nonrecurring | Significant Unobservable Inputs (Level 3) | Mortgage servicing rights |  |
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items] |  |
Impaired loans | 12,472 | 14,327
Fair Value, Nonrecurring | Significant Unobservable Inputs (Level 3) | Collateral dependent loans |  |
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items] |  |
Impaired loans | $ 13,123 | $ 6,806

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- Definition Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items] + References No definition available. + Details
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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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